Seikei University (成蹊大学, Seikei daigaku) is a private university in the Kichijōji area of the city of Musashino, Tokyo, Japan.

Its name derives from a passage in the Records of the Grand Historian by Sima Qian. Its campus is noted for its rows of zelkova trees, which is listed as one of the 100 Soundscapes of Japan.